IPA: /ˈɪn.tə.lɛkt/
KK: /ˈɪn.tə.lekt/
The ability to think, learn, and understand things; it refers to a person's mental capacity and reasoning skills.
Her intellect allowed her to solve complex problems quickly.
Intellect is formed from "intellectus" (meaning understanding) which comes from the Latin root "intelligere" (meaning to understand, to choose between). The word refers to the capacity for understanding and reasoning.
Think of 'understanding' ('intellectus') as the core of intellect, which means the ability to comprehend and reason.
No commonly confused words.